Update tool versions, add pyupgrade, cleanup pylint

[wRAR]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.39%. Comparing base (181a70f) to head (e9b274d).
Report is 15 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #234      +/-   ##
==========================================
- Coverage   96.18%   95.39%   -0.80%     
==========================================
  Files           9        9              
  Lines         498      521      +23     
  Branches       94       89       -5     
==========================================
+ Hits          479      497      +18     
  Misses          9        9              
- Partials       10       15       +5     

Files with missing lines	Coverage Δ
w3lib/_types.py	100.00% <100.00%> (ø)
w3lib/encoding.py	100.00% <100.00%> (+1.42%)	⬆️
w3lib/html.py	95.49% <100.00%> (ø)
w3lib/http.py	91.11% <100.00%> (-8.89%)	⬇️
w3lib/url.py	97.91% <100.00%> (-0.79%)	⬇️
w3lib/util.py	72.22% <100.00%> (ø)